. >> also joining us is bob baer, formerly cia officer with extensive experience in the middle east, throughout the world. bob, as you watch this operation unfold, and when you hear the information from several sources that a foreign government did request that the fbi interview the older brother, i believe it was back in 2011, if i'm not mistaken, after he returned from russia, do you see that as very significant or is that the kind of thing more routine? >> no. that's significant. it was probably the russians came to the cia or the fbi and said look, we think this guy may have been recruited, what's he done, where has he been, what's his status in massachusetts. the russians are really in control in terms of intelligence of the north caucasuses, whether dagestan or chechnya. they have the expertise, they speak the languages. the cia and the fbi have pretty well stayed away from these regions because they are so complicated. they haven't been a threat to date. and so we defer to foreign governments. now, we don't entirely trust the russians on this because he may have simply been a